docs(public): fix README support section to match actual channels (contact form, no in-app reporting/issues)

README.md

@@ -135,9 +135,7 @@ The VPN server and management UI are proprietary. Source review under NDA is ava
 
 ## Support
 
-**Bug reports:** Use the in-app reporting feature or open an issue in this repository.
-
-**Security vulnerabilities:** Do not open a public issue. Contact the maintainer directly at the address shown in the application's About screen.
+Bug reports, security vulnerabilities, and any other inquiries: use the contact form at [www.k-ops.eu](https://www.k-ops.eu).
 
 **Contributing:** Core development is handled internally. We do not currently accept external pull requests.